Optical circuit for comparing two N-bit binary words

Optical: systems and elements – Optical computing without diffraction – Logic gate

Reexamination Certificate

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Reexamination Certificate

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07869107

ABSTRACT:
An optical comparator circuit includes a first stage including an optical gate which receives the signals applied to the two inputs and produces at its output an N bit signal with each bit being representative of the logical expression A XOR B for a respective pair of bits of the words A and B, a second stage which comprises an optical gate having at least two inputs, a first input being connected to the output of the first stage by an optical connection having a first time delay, and a second input being connected to the output of the first stage through (N−1) further optical connections, each further connection having a different associated time delay which is longer than the first time delay.

REFERENCES:
patent: 4864524 (1989-09-01), Guilfoyle et al.
patent: 6275311 (2001-08-01), Boffi et al.
patent: 6462865 (2002-10-01), Chu et al.
patent: 6731648 (2004-05-01), Cotter
patent: 7248400 (2007-07-01), Byun et al.
patent: 2003/0058527 (2003-03-01), Kim et al.
patent: 03216727 (1991-09-01), None
Berrettini, G. et al. “Ultrafast Integrable and Reconfigurable XNOR, and, NOR and NOT Photonic Logic Gate.” IEEE Photonics Technology Letters, vol. 18, No. 8, Apr. 15, 2006, pp. 917-919.
Yasui, T. et al. “Ultrafast All-Optical Pattern Matching Using Differential Spin Excitation and Its Application to Bypass/Drop Self-Routing for Asynchronous Optical Packets.” Journal of Lightwave Technology, vol. 24, No. 2, Feb. 2006, pp. 723-733.
Martinez, J. M. et al. “All-Optical Address Recognition Scheme for Label-Swapping Networks.” IEEE Photonics Technology Letters, vol. 18, No. 1, Jan. 1, 2006, pp. 151-153.
Li, C. Y. et al. “Deflection Routing in Slotted Self-Routing Networks with Arbitrary Topology.” 2002 IEEE International Conference on Communications (ICC 2002), vol. 5, 2002, pp. 2781-2785.

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